Journal of Science and Technology of Composites

Design and Develpoment of Polymer Based Composite in Order to Minimize the RCS

Document Type : Research Paper

Authors

1 Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran.

2 Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran..

10.22068/jstc.2020.120113.1628

Abstract

Radar cross section (RCS) is an indicator of the radar detectability of an object. The greater this value, the more visible is the object is to the radar. Basic methods of RCS reduction in composite materials are accomplished through modifications in the design, use of adsorbents additives and composite layup. In this research, the design and development of a GFRP composite material with low RCS has been accomplished. For this purpose, at first, the GFRP samples were manufactured using the Infusion process. In the next step, a layer containing epoxy reinforced by 1, 3 and 5 Vol.% of aluminum, alumina and iron oxide powder has been applied on the GFRP samples. Finally the manufactured samples were subjected to X-band VNA test at four frequencies of 8.5, 9.5, 10.5 and 11.5 GHz. In order to save money and time, Responsive Surface Method (RSM) of Design of experiments (DOE) was used to find the optimum sample. The results show that the maximum absorption was in the sample containing the AL powder (5%) and minimum was observed in the sample having 1 Vol.% of alumina due to their conductivity. Overall in all samples, the absorption increased with the increase in the volume percent of the additives.

Keywords

References
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Journal of Science and Technology of Composites
Volume 7, Issue 3
December 2020
Pages 1047-1056
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